Flutter — How to rotate an image using AnimationController and Transform

Flutter rotate animation, tutorial and example.

First, let your widget state class implement SingleTickerProviderStateMixin.

Secondly, define an AnimationController and don't forget to dispose it. If you are not yet using null-safe, remove the late keyword.

late AnimationController _controller;
@override
void initState() {
  _controller = AnimationController(
    duration: const Duration(milliseconds: 5000),
    vsync: this,
  );
  super.initState();
}
@override
void dispose() {
  _controller.dispose();
  super.dispose();
}

Then wrap your Widget with RotationTransition.

RotationTransition(
  turns: Tween(begin: 0.0, end: 1.0).animate(_controller),
  child: Icon(Icons.stars),
),

Finally, call methods on the AnimationController to start/stop animation.

• Run the animation once, use .forward
• Loop the animation, use .repeat
• Stop immediately, use .stop
• Stop and set it back to original rotation, use .reset
• Stop and animate to a rotation value, use .animateTo

Example code (null safe):

import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  @override
  void initState() {
    _controller = AnimationController(
      duration: const Duration(milliseconds: 5000),
      vsync: this,
    );
    super.initState();
import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget…